Neither Chateau Lafite Rothshchild or Chateau Mouton Rothschild have ever released a kosher edition. Nor, if my guess is correct, will they.

The Rothschild name does, however, appear on several kosher wines - Edmond de Rothschild, Malmaison of Nadine de Rothschild and others, but those wines have no direct connections to the two great Rothschild estates. To add to the confusion perhaps, there is a kosher wine from Chateau Smith Haut Lafitte. Notice though the difference in spelling, as the first represents a family of bankers while the second is related to the well-known pirate.